void instatiateBall()
	{//Vector3 size = spawnBox.collider.bounds;
		//Vector3 SpawnOrigin = spawnBox.transform.position;
		

		// zpos = 0;
		//Vector3 pos = spawnBallinBox(); 
		Vector3 pos = spawnBallInArc(); 
		currentBall = Instantiate(target_prefab, pos, Quaternion.identity) as GameObject;
		currentBall.transform.parent = spawnBox.transform;
		ballBehaviour ballbehaveScript =  currentBall.GetComponent<ballBehaviour>();
		ballbehaveScript.setReciever (this);
		ballbehaveScript.maxTime = Random.Range (minTime,maxTime);
		ballbehaveScript.startTheCount();
	}